Zone 8 Gardening

What to Plant in September in Zone 8

By Parvez Akhtar Pasha | Aug 29, 2025

What to Plant in September in Zone 8

If you have been sitting around all summer thinking, "One day, I will plant fresh greens, root veggies, herbs, and flowers," well, that "one day" is now. Yes, September in Zone 8 is your perfect 30-day opportunity to plant like an expert, and your garden will actually thank you for it.

And don't worry, I am not just throwing random advice at you. I am sharing the plants that actually grow well in September in Zone 8, no guesswork, no "maybe this works" nonsense, just practical tips that actually work.

All right then, grab your gloves, seeds, and maybe a cup of coffee — it's time to make your garden so amazing that your neighbors can't stop staring, wishing it were theirs.

Leafy Greens to Plant in September in Zone 8

Leafy greens are awesome for fall gardening. They grow well in cooler weather and keep giving you fresh veggies into winter.

In Zone 8, September is a great time to plant them straight in the ground or start them in trays to transplant later.

Leafy Green Planting Method Transplanting Time First Harvest Variety Recommendations
Lettuce Direct sow or start in trays 3–4 weeks after sowing 30–45 days Romaine, Butterhead, Black Seeded Simpson
Spinach Direct sow Rarely needed 35–50 days Bloomsdale Long Standing, Space
Kale Direct sow or start in trays 3–4 weeks after sowing 45–60 days Lacinato (Dinosaur), Winterbor
Collards Direct sow or start in trays 4 weeks after sowing 55–75 days Georgia Southern, Champion
Mustard Greens Direct sow Not required 30–45 days Southern Giant Curled, Mizuna
Swiss Chard Direct sow Not needed 50–60 days Bright Lights, Fordhook Giant
Arugula Direct sow Not needed 20–30 days Rocket, Astro
Leek Start in trays 8–10 weeks after sowing 100–120 days American Flag, King Richard
Bok Choy Direct sow or start in trays 3–4 weeks after sowing 45–60 days Joi Choi, Shanghai Bok Choy

In early September, use a shade cloth or a light row cover to protect your young plants from the last hot days of summer and help them grow strong.

Keep soil consistently moist, but avoid overwatering, especially for lettuce, spinach, and kale.

Transplant seedlings only after they have 2–4 real leaves, and be careful not to hurt their roots.

Common pests like aphids, whiteflies, and slugs can damage your greens, so check your plants regularly and take action if needed.

Vegetables & Root Crops for September

This month is a great time to plant root vegetables and hardy brassicas. They do well in cooler weather and will give you fresh, tasty flavors after the first light frosts.

So, these are some vegetables and root crops that you can plant now in September for a healthy, tasty harvest this season.

Vegetable Planting Method Transplanting Time First Harvest Variety Recommendations
Carrots Direct sow Not needed 60–80 days Nantes, Danvers, Bolero
Radishes Direct sow Not needed 25–30 days Cherry Belle, French Breakfast
Beets Direct sow Not needed 50–70 days Detroit Dark Red, Chioggia
Turnips Direct sow Not needed 40–60 days Purple Top White Globe, Hakurei
Rutabaga Direct sow Not needed 80–100 days American Purple Top
Broccoli Start in trays or buy seedlings Transplant in 3–4 weeks 60–90 days Calabrese, DeCicco
Cauliflower Start in trays or buy seedlings Transplant in 3–4 weeks 60–100 days Snowball, Amazing
Cabbage Start in trays or buy seedlings Transplant in 3–4 weeks 70–100 days Golden Acre, Red Acre
Brussels Sprouts Start in trays or buy seedlings Transplant in 4–5 weeks 90–120 days Long Island Improved
Onion Direct sow or seedlings Transplant in 8–10 weeks 90–120 days Red Baron, Walla Walla, Yellow Sweet Spanish
Garlic Cloves directly into soil Not needed 180–210 days Softneck, Hardneck
Green Beans Direct sow Not needed 50–60 days Contender, Blue Lake
Peas Direct sow Not needed 60–70 days Sugar Snap, Little Marvel

Carrot and beet seeds take up to 2 weeks to germinate, so be patient and keep the soil lightly and consistently damp until they grow.

Garlic and onions need well-drained soil and a long time to grow strong bulbs.

Don’t transplant green beans and peas, they grow best when you plant their seeds directly in the ground.

Best Flowers to Plant in September

I think this is also a great time to plant cool-season flowers that will bloom through fall and into winter. The cool-season flowers are like the show-offs of the garden, they bloom when other plants are fading away.

Just pick the right flowers and plant them now, and while other gardens look sleepy, your garden will shine with colors that will make your neighbors think you hired a pro landscaper.

Don't worry about picking the right plant, I will help you out. Just scroll down and check out the table below. It's got all the info you need, like a cheat sheet for your garden.
Flower Name Planting Method Transplanting Time First Bloom Perennial or Annual Flower Color(s)
Pansies Direct sow or transplant 3–4 weeks after sowing 6–8 weeks Annual Purple, Yellow, White, Blue, Mixed
Violas Direct sow or transplant 3–4 weeks after sowing 6–8 weeks Annual Purple, Yellow, White, Blue, Mixed
Snapdragons Direct sow or transplant 3–4 weeks after sowing 8–10 weeks Annual Red, Pink, White, Yellow, Orange
Calendula Direct sow N/A 8–10 weeks Annual Orange, Yellow
Dianthus Direct sow or transplant 3–4 weeks after sowing 8–10 weeks Perennial Pink, Red, White, Purple
Sweet Alyssum Direct sow N/A 6–8 weeks Annual White, Purple, Pink
Ornamental Kale Transplant 3–4 weeks after sowing 8–10 weeks Annual Purple, White, Pink
Asters Direct sow or transplant 3–4 weeks after sowing 8–10 weeks Perennial Purple, Pink, White
Chrysanthemums (Mums) Transplant 4–6 weeks after sowing 10–12 weeks Perennial Yellow, White, Pink, Red, Purple

These flowers will keep showing off their colors while other plants are like, ‘I’m out, see you next year.'

Plant seeds in bright, sunny spots with good air circulation so your seedlings get enough sunlight for photosynthesis, and the airflow prevents mold or diseases.

Use a small amount of fertilizer and water gently so the seeds don't get washed away. Also, add mulch to protect young seedlings from temperature changes.

Fruits & Berries for September in Zone 8

Zone 8 gardeners, you have a unique advantage, you can prepare now for next spring’s fruit harvests. TRUST me, September is the perfect time to get ready for next spring's fruits.

You can plant perennials now, let them chill through winter, and see them grow big and healthy in spring.

Fruit / Berry Planting Method First Harvest Variety Recommendations Max Height Type
Strawberries Plant bare-root crowns or transplants Next spring Chandler, Sweet Charlie 6–12 inches Perennial
Raspberries Plant bare-root canes Next summer Heritage, Caroline 4–6 feet Perennial
Blackberries Plant bare-root canes Next summer Apache, Arapaho 5–8 feet Perennial
Blueberries Plant young bushes 2nd year Legacy, O’Neal 4–6 feet Perennial
Grapes Plant bare-root vines 2–3 years Concord, Flame Seedless 6–10 feet (vine) Perennial
Currants Plant dormant bare-root plants Next year Red Lake, Rovada 3–5 feet Perennial
Gooseberries Plant dormant bare-root plants Next year Hinnomaki Red, Invicta 3–5 feet Perennial
Kiwi (hardy types) Plant young vines 3rd year Arctic Beauty, Hardy Chicago 10–15 feet (vine) Perennial
Figs Plant young trees 2nd year Brown Turkey, Celeste 10–30 feet Perennial

These plants are all perennials, so they will come back every year and give you fruit season after season, not just one time and then stop.

Notes:

  • Strawberries: Plant them in mid to late September if you are in Zone 8.
  • Kiwi (hardy varieties): Plant in early September for Zone 8.

If you start planting berries in September, always mix compost and a bit of organic fertilizer into the planting hole.

Herbs to Grow in Zone 6 in September

In Zone 8, September is a great time for planting herbs that love the cool weather and grow fast, like cilantro, parsley, chives, and dill.

The most important thing is choosing the right plants for the season, so you will have steady, fresh harvests through fall and early winter.

Don’t WORRY about choosing the right plants, I am here to help you pick the ones that grow best at this time in your area. Just take a look at the table below, and you will find all the important details you need.

Herb Planting Method Transplanting Time First Harvest Flavour Variety Recommendations
Cilantro Direct sow Not required 30–45 days Fresh, citrusy Santo, Leisure
Parsley Direct sow or transplant 3–4 weeks after sowing indoors 70–90 days Mild, fresh Italian Flat Leaf, Curly Moss
Chives Direct sow or transplant 4–6 weeks after sowing indoors 60–90 days Mild onion Common Chives, Garlic Chives
Dill Direct sow Not required 40–60 days Fresh, slightly tangy Bouquet, Mammoth
Thyme Direct sow or transplant 4–6 weeks after sowing indoors 60–90 days Earthy, slightly minty English Thyme, French Thyme
Oregano Direct sow or transplant 4–6 weeks after sowing indoors 60–90 days Robust, slightly bitter Greek Oregano, Italian Oregano
Mint Transplant or divide 4–6 weeks after sowing indoors 60–90 days Cool, refreshing Spearmint, Peppermint
Sage Direct sow or transplant 4–6 weeks after sowing indoors 70–90 days Pungent, slightly peppery Common Sage, Garden Sage

Use well-drained soil mixed with compost or organic fertilizers. Most herbs like soil that's not too acidic, around pH 6.07.0.

Pick a spot with lots of sun (6+ hours a day) for most herbs. Parsley and mint are okay with some shade.

These herbs can handle light frost, but add mulch or row covers if a cold wave is coming.

Parvez Akhtar Pasha

Parvez Akhtar Pasha

Hi, I am Parvez Akhtar Pasha. I was in school when I first saw a plant grow from a seed. Over the years, I have gained a lot of experience in gardening, and I will gradually share it with you here.

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